Shell applique



FIG. 1 is a top left front perspective view of a shell applique showing our new design;

FIG. 2 is a top plan view thereof; the bottom plan view being a mirror image;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a left side elevational view thereof. 

The ornamental design for a shell applique, as shown and described. 